Apparatus for chilling fluids



May 24, 1949. s. 1.o GERFO 2,470,936

APPARATUS FOR CHILLING FLIDS Filed April 13, 1944 WM .ILD L M1511.

1o l Ihre l iwf/777W?? l LJ A@ I LH 50 i 118 1% '15G /zi t 54 l?? 56 32 w 3040 n 43 33 84 62 58 76 @o f3@ V- fjlf 15T 1 C if D 77 1 my@71 E E `74 @y c 1 j/f\-z y mgsjw n? l 92 l n fl/ \'26 i 88 f n `2A .(-q '19 /94 98 .E my --/s 96 I L u 11o f* 64?'. Q/112 c i 16 M- x le y lZO zl L ma i ../"106 INVENToR. lOB2rc1:| n- 1:|:\1 nm :1LA SAN/UORE LOGER/o 17T f @Y ATTORNEY Patented Mey 24, 1949 2,470,936

UNITED STATES PATENT OFFICE APPARATUS FOR CHILLING FLUIDS Salvatore Lo Gerfo, Brooklyn, N. Y.

Application April 13, 1944, Serial No. 530,733

6 Claims. (Cl. 62-141) This invention relates to apparatus 'for chilling of a clamp ring i0 seated on a flange l2 on the fluids. dome so that upon tightening the nuts a gasket Itis an. object of. my invention to provide a i3 will be clamped between the flanges of the cooler which-comprises relatively feW and simple dome and shell. By loosening the nuts 32 and parts, is easy to manufacture, install and clean` 5 swinging the bolts 34 out ofthe slots 38, connec maintainsauniform and-accurate control of the tion between the dome and shellV may bebCken temperature to whichthe liquid is cooled and can with great ease. A similar lower dome 44 is sebe. readily disassembled for replacement or -curedby identical means tothe open bottom end. repair. ofthe shell 2d.

Qther objects of this invention will in Vpart be l Syrup` flows to the cooler from the vat IU,- obvious, and in part hereinafter pointed out. through anoutlet pipe 4t extending through the The invention accordingly consists in the feafloor 48 onfwhich the vat is supported, through. a tures of'construction, combinations of elements, valve Sil, and finally through a flexible conduit andv arrangement of parts which will be exempli- 52 toa unioninlet fitting Ellv on the upper domeed' in the construction hereinafter described, l5 3B. Aneair vent itA facilitates the passage of-syrup. and'ofwhich the scope of application will be indithroughthe cooler. cated in the appended claims. A` bank of vertical stainless steel tubes 5S4 in,

In. the accompanying drawings, in which is the shell have their top ends projecting throughy shown one of the various possible embodiments of apertures 60 in an arcuately depressed header this invention, plate 62 fastened to the upper end of the shell,

Fig l iS e Side V-ieW, Derteally Sehemete and said-projecting ends being upset to firmly-secure Partially in Section, Of an apparatus embodying them in position; The lower ends of said tubes my invention; end are secured in likefashion to a similar, identically Fig? 2'S an enlarged Sectional View of one 0f oriented bottom header plate 64 secured to the the detalts thereof-f base of said shell. Tubesmay be readily replaced Refernng DOW totne drawlngs m denotes e upon corrosion, failure, etc. by boring, out' their Vat' m'whlch Symp Stored @iter the Same has upset endsin one of the header plates 62, 64, andf been' made' 1S @u stoma'ry m Genom branches withdrawing the tube from the opposite header; offthf'art ,thls Vat; 1S imposed above the umg 30 Pursuant to a feature of my invention, the outmaqhme'lw at Whlch bottles. B he@ syrup and let end of each tube is restricted; for example, cooltcarbfonated Water successively inJected thereby al bushing 5B (Fig 2) which greatly reduces ma' d1 Brent stamens before heme Gapped' the effective outlet of the tube. said bushingsv Thesyrup: is fed: into the` bottles through a filling nozzle l2`and the carbonatedwater is fed into; the` bottles through. another lling nozzle 35 I4.y The-water,` which is Vled from a source of sup-- plyggsuch as a city'niain, through a conduitl l5, is,cooledand charged ina conventional and'combinedzcarbonator and refrigerator i8v before being conducted through'a pipe 20 to the nozzle lll. 40

Iinterpose between the lvat I!) and'syrup filling nozzle I2.. a Icooler 22A embodying myA invention.

are screwed into threads-'Hl tapped in the bottomsl of the tubes 58 and are provided with conventionalimeans, such as hexagonal flats l2, to facilitate their removal When the tubes are tov be cleaned.

Betweentheupper and'lower header platesll, Gil; the 4shellI is filled with-aliquid of low freezing point; e. g., a mixture of brine and glycerine,V which is maintained-at a desiredchillingteIn-per- As'shown, Said @001er may, bekmated at a level ature by a suitable refrigerant', e. g., Freon, ambetween the bottom of the vat and the machine: monof Sulphur dioxide or methyl Chloride, which at. which,bott1es.B.-are nlled, so that syrup can 45 IOWS in parallelthroush helical Coils 14", lyone OW. throughthe-cooler under gravity. of which-is-disposed outside of the bank of tubes The cooler comprises a tubular Shop 24 having 58 and the other near the lcenter of said bank..

a surrounding heat insulating jacket 25 which Said liquid may be admitted to the shell atinlet isproteotedby a mei-,a1 Sheath` 2g, An upper ll anddrained therefrom at an outlet 'I8'. The dome 301covers the ltop end ofthe shell where refrigerant. iS Supplied in liquidstate by: a C011- it is detachably secured byv large wingr nuts 3,2 ventional combined compressor and heat exwhich are threaded on eye bolts 34 pinned to a changer 19 and is led by a pipe 80 t0 a Variabile reinforcing angle iron 36' surrounding the shell aperture expansion-valvezconnected to theooils beneath its upper flanged end; Said` bolts are 14, 16, A pipe 84 returns the expanded gasto.v adaptedto be swungintoslots 38 in the periphery 55A the compressor 19t Theuse of a.tyllicalacechan-fical refrigeration system such as the foregoing to cool a liquid of low freezing point which circulates through a bank of tubes having restricted outlets enables me to obtain an extremely uniform predetermined temperature in the syrup.

The temperature to which the syrup passing through the cooler is reduced is controlled by a thermostat bulb 88 which regulates the expansion valve 82. This temperature may be varied by changing the pressure in the thermostatic system by turning a screw plunger (not shown) controlled by a handle 90. Operation of the compressor 19 is controlled by a snap switch 82 actuated by a bellows 94 in the supply pipe 88.

The temperature of the low freezing point liquid passing around the several tubes 58 is kept uniform by an agitator, such as a propeller 95, whose drive shaft 88 passes through a gland |88 in the shell, jacket and cover, and is driven by a motor |82.

The weight of the cooler 22 is supported on a plurality of standards |04 connected by pipe anges |86 to the oor |08 and roof 4B of the enclosure in which the cooler is located. Brackets Il secured by set screws ||2 to the standards are pinned to the shell.

It is desirable to arrange the cooler so that it can be easily cleaned in order to maintain the same in sanitary condition. For this purpose, the bottom dome 44 has an inverted saddle plate H4 centrally disposed therebeneath and carried by a screw I6 received in a base I8 bolted to the floor |88. Manipulation of a hand wheel |28 engaging the screw HG and resting on the base H8 raises or lowers the saddle ||4, and if the wing nuts 32 have been previously undone and the bolts 34 swung out of the slots 38 in the bottom dome, this dome can be dropped under full control, its weight being wholly supported by the saddle plate.

The top dome has a socket tting |22 welded to its center, the ball end of a threaded rod |2f4 being flexibly received therein. This rod is threaded into a tapped sleeve |25 seated in a hanger |28 bolted to the ceiling 48. A hand wheel 38 is fastened by a set screw to said sleeve whereby upon rotation of the hand wheel the plate 22 will be urged upwardly. This will raise the dome 38 when the wing nuts and bolts associated therewith are undone.

It may be mentioned that when the cooler is initially installed the hand wheels |28, |38, may be used to regulate the height of said cooler prior to clamping the set screws ||2.

My improved cooler can also be used to chill other potable liquids such, for example, as beer and milk.

It will thus be seen that there is provided an apparatus in which the several objects of this invention are achieved, and which is Well adapted to meet the conditions of practical use.

As various possible embodiments might be made of the above invention, and as various changes might be made in the embodiment above set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

l. A cooler of the character described for chilling a fluid, said cooler comprising an enclosure adapted to house a liquid of low freezing point, a bank of fluid-passing tubes running through said enclosure, and means in said enclosure forming a refrigerant passageway around a plurality of said tubes, the outlet end of each tube being restricted so as to impede the passage of iiuid therethrough.

2. A cooler of the character described for chilling a fluid, said cooler comprising an enclosure adapted to house a liquid of low freezing point, a bank of fluid-passing tubes running through said enclosure, and means in said enclosure -forming, a refrigerant passageway around a plurality of said tubes, said tubes being substantially vertical and having their lower ends restricted whereby to impede passage of uid therethrough.

3. A cooler of the character described for chilling a fluid, said cooler comprising an enclosure adapted to house a liquid of low freezing point, a bank of duid-passing tubes running through said enclosure, and means in said enclosure forming a refrigerant passageway around a plurality of said tubes, said tubes being substantially vertical, the lower ends of the tubes being tapped, and threaded bushings with restricted openings therethrough threaded into the lower ends of the tube whereby to impede passage of fluid through the tubes.

4. A gravity cooler for chilling a uid, said cooler comprising a tubular shell whose longitudinal axis is vertically disposed, a pair of header plates attached to the upper and lower ends of said shell, a bank of vertically extending iluidpassing tubes whose upper ends are attached to the upper header plate and whose lower ends are attached to the lower header plate, an upper dome covering the upper end of the shell, a lower dome covering the lower end of the shell, means to detachably secure said domes to said shell, a helical coil within said shell and surrounding a plurality of said tubes, the longitudinal axis of said coil being coincident with the longitudinal axis of said shell, means on the ends of said coil to connect the same to a mechanical refrigerant liquefying unit, and means to introduce a liquid of low freezing point within said shell and around said tubes.

5. A gravity cooler for chilling a fluid, said cooler comprising a tubular shell whose longitudinal axis is vertically disposed, a pair of header plates attached to the upper and lower ends of said shell, a bank of vertically extending uidpassing tubes whose upper ends are attached to the upper header plate and whose lower ends are attached to the lower header plate, at least one end of the shell being covered by a dome detachably secured thereto, means to support said dome when detached from said shell, a helical coil within said shell and surrounding a plurality of said tubes, the longitudinal axis of said coil being coincident with the longitudinal axis of said shell, means on the ends of said coil to connect the same to a mechanical refrigerant liquefying unit, and means to introduce a liquid of low freezing point within said shell and around said tubes.

6. A gravity cooler for chilling a fluid, said cooler comprising a tubular shell whose longitudinal axis is vertically disposed, a pair of header plates attached to the upper and lower ends of said shell, a bank of vertically extending fluidpassing tubes whose upper ends are attached to the upper header plate and whose lower ends are attached to the lower header plate, at least one end of the shell being covered by a dome detachably secured thereto, means to support the dome in adjustably spaced position from said shell when detached therefrom, a helical coil Within said shell and surrounding a plurality of said tubes, the longitudinal axis of said coil being coincident with the longitudinal axis of said shell, means on the ends of said coil to connect the same to a mechanical refrigerant liquefying unit, and means to introduce a liquid of 10W freezing point Within said shell and around said tubes.

SALVATORE LO GERFO'.

6 REFERENCES CITED The following references are of record in the file of 'this patent:

Number UNITED STATES PATENTS Name Date Noyes Feb. 1, 1881 Meyer Dec. 31, 1940 Huber Aug. 11, 1942 Osborne, Jr., et al. Oct. 27, 1942 

